LT3030IFE#PBF

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LT3030IFE#PBF is a dual micropower linear regulator from Analog Devices, featuring independent 750mA and 250mA outputs. It operates within a 1.7V to 20V input range and provides adjustable output voltages from 1.220V to 19.5V using a precision internal reference. The device delivers low noise performance of 20μVRMS with a bypass capacitor and maintains stability with ceramic capacitors as small as 10μF and 3.3μF respectively. Quiescent current is typically 120μA/75μA per channel, dropping below 1μA in shutdown.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Dual independent channels with 750mA and 250mA output capabilities
• Low dropout voltage operation for efficient power management
• Micropower quiescent current with deep shutdown mode
• Integrated reverse battery and reverse output protection

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered systems requiring extended runtime
• Microprocessor core and logic supplies
• Post regulators for switching power supplies
• Tracking or sequencing power supply architectures

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'IFE' corresponds to the industrial temperature grade (-40°C to 125°C) and TSSOP-20 package configuration. Confirm that the '#PBF' designation indicates lead-free finish and RoHS compliance. Ensure compatibility with the required thermal dissipation requirements for the TSSOP package under maximum load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when independent dual rails are necessary within a single footprint. The device supports common or separate input supplies for each channel. Designers must account for the shared ground plane and thermal coupling between channels. Verify that the minimum output capacitance requirements align with the system's transient response needs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the LT3030 family of dual low dropout regulators. It shares architectural similarities with other Linear Technology devices but offers specific current ratings and package options. The IFE variant specifically denotes the industrial grade operating temperature range and the 20-lead TSSOP physical form factor.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

LT3030EFE#PBF (Industrial Grade, TSSOP)

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

How does the LT3030 handle reverse input voltage?

The device incorporates internal circuitry that acts like a series diode during reverse input events, preventing reverse current flow and protecting both the regulator and the load.

What is the function of the BYP pin?

Connecting a capacitor between the OUT and BYP pins bypasses the internal reference, significantly reducing output voltage noise and improving transient response.